JUST WATCHED

Stan Smith: Tennis' fashion icon

MUST WATCH

Stan Smith: Tennis' fashion icon04:01

Story highlights

Stan Smith sneakers are a fashion classic

Shoe is Adidas' bestselling shoe of all time

Smith won two grand slam singles in 1970s

(CNN)You will see them on catwalks, red carpets and on high streets all over the world -- a shoe that fits as comfortably on the feet of celebrities as it does on those trundling around shopping centers on a Saturday afternoon.

For many, though, the name stamped on the iconic sports shoe remains something of a mystery -- despite being a two-time grand slam singles champion.

"I did some interviews in Paris a couple of years ago ... one person said: 'I think he played basketball.' Another one said: 'maybe he played tennis, or was he a runner?'" the 69-year-old Stan Smith told CNN's Open Court.

"Some people say to me 95% of the world have no idea who you are and then my wife jumps in and says '99% of people in the world have no idea -- as a person.'"

While Smith's exploits on the tennis court may have lost in the mists of time, his eponymous shoes have lived on in the public consciousness selling more than 40 million pairs for the German sportswear company Adidas -- their bestselling shoe of all time.

Read More

Photos:

Adidas Stan Smiths – The shoes that are so popular, many of its younger generation of wearers don't know they're named after a former world no. 1 tennis player. Stan Smith won the US Open in 1971 and Wimbledon in 1972, but he's perhaps best known for his endorsement of the Adidas classic that became a fashion staple in 2015.

Hide Caption

1 of 11

Photos:

11 most iconic sneakers: Chuck Taylor All-Stars – According to his biographer Abe Aamidor, Chuck Taylor was an Indiana-born college basketball player who began playing for a Converse-sponsored team -- the All-Stars. Touring US colleges as a brand representative, Taylor became so influential that in 1932, the brand named a pair after him. "Chucks" were the first in a very long line of celebrity shoe endorsements and became one of the best selling basketball shoes of all time.

Hide Caption

2 of 11

Photos:

Onitsuka Tiger Mexico '66 – Onitsuka Tiger was founded by Japanese military general Kihachiro Onitsuka after World War II in a bid to boost the morale of youth through athletics. The company worked with marathon runners in the 1950s to produce some of the first professional running shoes before targeting the US market. Two years before the 1968 Mexico Olympics the brand introduced the famous ASICS stripe logo on the Limber leather, which later became the Mexico '66.

Hide Caption

3 of 11

Photos:

Nike Cortez – Designed by US Olympic track coach Bill Bowerman, the Nike Cortez was marketed as the first modern track shoe and released before the 1972 Munich Olympics. The sneaker earned legendary status as an early long-distance running shoe, cemented in the 1994 film Forrest Gump when Jenny's gift of a pair of Nike Cortez helped Forrest run across America.

Hide Caption

4 of 11

Photos:

Puma Clyde – The PUMA Clyde was created in 1973, when Knicks basketball player Walt "Clyde" Frazier apparently asked the brand for a custom pair of PUMA Suede. The shoes has since been released in a myriad of colorways, prints and fabrics, paying homage to Clyde's notoriously flamboyant style.

Hide Caption

5 of 11

Photos:

Gucci – Gucci became the first luxury designer brand to produce sneakers in 1984. It's first classic tennis shoe, made of Italian white leather with the brand's signature red and green stripes, led many ateliers to follow suit, eventually sparking more daring iterations such as this silver sneaker with gold embroidered bee.

Hide Caption

6 of 11

Photos:

Nike Air Jordan – In 1984 Nike signed a five year deal with then Chicago Bulls rookie Michael Jordan, including his promotion of a brand new red and black basketball high top -- the Air Jordan. The fact that the NBA initially banned the shoes for not being majority white only lent to their cachet, and the Air Jordan propelled the growth of sneaker culture among US basketball-loving youth.

Hide Caption

7 of 11

Photos:

Adidas Superstars – Just as iconic is the Superstar, heralded in Run DMC's 1986 hit "My Adidas." The subsequent deal between the two was the first endorsement deal between a hip hop artist and a sports brand, a mantel carried forward by the likes of Wu Tang Clan (Nike,) Pharrell (Adidas,) Jay Z (Reebok) and many others.

Hide Caption

8 of 11

Photos:

Adidas Trimm Trab – As basketball and hip hop fueled sneaker culture in the US, in the UK it was a fashion game between football fans. Jockey Wyatt was one of "The Casuals" in the 1980s and now owns Transalpino, a leading UK "deadstock" store. "If you had to picked one trainer that would encapsulate the landmark of trainers becoming an object of fashion rather than a sporting necessity, it would be this." Wyatt said the Trimm Trab became "the terrace shoe of a generation" in the 1980s.

Hide Caption

9 of 11

Photos:

Nike Air Max – Introduced in 1987 with their characteristic sole air bubbles, the Nike Air Max' were marketed as a revolutionary new step in air cushioning. They were designed by Tinker Hatfield, a trained architect who applied his studies of building design to shoes. Hatfield said that the exposed pipework of Paris' Centre Pompidou inspired him to create the visible window in the hit shoe.

Hide Caption

10 of 11

Photos:

Reebok Pump – Launched in 1989 in a bid to rival Nike Air Max, Reebok's Pump was a sneaker game changer -- the first shoe with an inflation chamber in the tongue that pumped up to provide a custom-fit around the ankle. When Boston Celtic's Dee Brown bent down to inflate his Pumps before netting a reverse dunk in the 1991 Slam Dunk Competition, the shoes became a cult classic, which have spawned many iterations since.

Hide Caption

11 of 11

"Players used it (at that time) because it was the best tennis shoe," Smith explains, "but it is now a fashion and I'm a fashion icon. It's crazy!"

World at his feet

Smith emerged as a force in world tennis in the late 1960s, enjoying a stellar career that straddled both the amateur and Open eras.

In all, he won seven grand slam titles (two singles and five doubles), 100 tour titles and seven Davis Cups for the US, including a run of five wins from 1968 to 1972.

He was also the first man to win the season-ending ATP Tour Finals when it was first held in 1970 -- not bad for a teenager who hadn't made the grade as a ballboy.

His 6-feet 4-inch frame was less of a hindrance on court and with coach Pancho Segura honing his raw talent, Smith quickly became a potent force in the men's game.

With a rapid serve and a deft touch at the net, Smith's game was suited to both singles and doubles and he soon cemented a place on the US Davis Cup team.

A first grand slam doubles title arrived in 1968 -- partnering Bob Lutz when the US Open was played at Forest Hills -- before making his mark in singles with victories at the 1971 US Open and at Wimbledon the following year.

Victory over Ilie Nastase in front of a packed Center Court crowd remains a career highlight, but so do the Davis Cup triumphs.

Stan Smith

Born Dec 14 1946, Pasadena, California

Grand slam singles titles:

2 (1971 US Open, 1972 Wimbledon)

Grand slam doubles titles:

5 (1970 Aus Open 1968, '74, '78, '80 US Open)

Davis Cup winner:

1968-1972, 1978, 1979

ATP Tour titles:

Singles 39 Doubles 61

"Playing outside your country is the most special because there are very few people supporting you. They play the national anthem, they have the American flag up -- it's incredibly special."

By the end of 1972, and having starred in the US's fifth successive Davis Cup win against Romania -- in front of a baying Bucharest crowd -- Smith had risen to the top of the men's rankings and had the world at his feet.

Looking for a marketing replacement for the recently retired French tennis star Robert Haillet, Adidas approached the American.

Today's shoe remains largely faithful to the original design that Smith wore on court.

"The only change would be a little more support on the Achilles tendon at the back of the shoe," Smith says. "Other than that it is the exact same shoe that was designed by Horst Dassler, Adi Dassler's son, and Haillet."

Smith's stenciled portrait and signature still adorn the tongue and remain an essential fashion item for the rich and famous -- with Pharrell Williams and Kanye West paid by Adidas to promote the shoe.

A photo posted by Pharrell Williams (@pharrell) on May 28, 2014 at 12:51am PDT

While the celebrity endorsements are flattering, Smith extracts just as much satisfaction from the stories he hears when doing promotional tours.

"Just recently I was in Tokyo and a guy from GQ magazine said: 'You know, I have worn your shoe every day of every year for the last 13 years!' The guy said he had kissed his first girl wearing the shoes," Smith says with a chuckle.

"Another guy said: 'I met this girl wearing these shoes and it meant so much that I got married wearing them!' Stories like that go on and on."

Fitting tribute

Tennis footwear has moved on and the stars competing in this year's ATP Tour Finals will wear shoes that reflect the rigors of the modern game.

New world No.1 Andy Murray has been drawn in a group with Stan Wawrinka, Kei Nishikori and Marin Cilic at next week's ATP World Tour Finals. pic.twitter.com/SF6fNXoDnu

But a sizable number of the spectators filing through the turnstiles at London's O2 Arena later this month will be sporting a pair of Stan Smiths -- most of them oblivious that they are wearing the shoe of the man who won the inaugural tournament in Tokyo 46 years ago.

Back then, Smith received a check for $15,000 and a bottle of Pepsi, who were co-sponsors, but no trophy.

While Smith is happy to admit that the prize money was "a fortune" in the 1970s it still pales in comparison to the $2.4 million jackpot on offer to this year's winner.

But he refuses to dwell on the disparity.

"You can look at it two ways. "You can say 'jeez, it was terrible that I was in this situation where the prize money was so low.' But before that there was no prize money at all. It was just amateur tennis and you would play for the love of the sport."

Of course, being a modern fashion icon is a status that money just can't buy. But Smith is happy to let his shoes do the talking -- most of the time.

"When I see people wearing them I kind of laugh. Occasionally, I'll go up to somebody and say: 'Do you like the shoe?' and they'll say: 'Yeah, it's a cool shoe!' And I'll say: 'Do you know who he is?' and they reply 'No,'" he says.